Time-adjustment construction



May 26, 1925.

c. M. CROOK ET A1.

TIME ADJUSTMENT CONSTRUCTION Filed Feb. 5, 1923 Patented May 2i", 1925.

UNITED snares CHARLES M. CROOK AND STROMBEEG ELECTRIC COX SPAN MAINE.

GE CEICAGU, ILLINOIS, ASSIGNORS 'IO QrsaCA-GG, ILLINQTIS, A CORPORATIONOF TIIYIE-ADJUSTIIETLTT GON-STRUCTION.

Application filed February 5, 1923.

cd no r A ljustn'ient Construction, of which the fob lowing is a Full.clear, concise. and exact description. reference being had to theaccompanying drawings, Forming a part or" this specification.

Our invention relates to a time-adjustment construction for changing thetime rclation between an actuating-memberand a member actuated thereby.Such a construction is useful in various locations and relations. Forinstance. it may be used in timecontrolled mechanism. in which it may bedesirable to change the time at which a certain operation shall occur.It might. for instance. be desired to change the time at which aclock-controlled signal shall be given. or the time at which the ribbonshift in a time recorder is effected, or the length 0; time of a processor operation controlled bv a time-controlled mechanism. There are manyother locations and relations where such a construction is desirable.

One of the objects of our invention is to provide an improvedtimeadjustment construction which will permit accurate. minute.adjustments to be readily made.

A further object of our invention is to pro ide a time-adjustmentconstruction which will be extremely compact so that a number or"adjusting devices ma v be placed in a limited space, or so that asina'le adjusting device may be placed in a limited space.

Further objects will appear from the detailed description to follow andfrom the appenoed claims.

In the drawings in which an embodiment of our invention is shown- 1 is aside elevation of a time-adjustment construction:

Fig. 2 is a plan View of the construction shown in Fig. 1;

Fig. 3 is an enlarged perspective view showing part of thetime-adjustment construction;

Fig.- 4 is a section on the line 4.-4 of Fig. 2"

Serial No. 618,914.

- Fig. is a Fig. 4; and,

Fig. 6 is an enlarged View showing the relation of the cam members.

Referring now to the drawings in detail. the construction shown thereincomprises in a general way. a rotatable actuating member 10. which may,if desired. be timecontrolled. a pivoted actuated member 11. actuated bythe actuating-member 10, and means for changing the time relationbetween the actuating-member 10 and the actuated member 11 comprising acam mem ber 12 mounted on the actuating-member 10 and a cam member 13mounted on the actuated member 11. and co-operating with the cam member12.

The cam member 12 is adjustable longitudinally ot the axis of therotatable member 10. and the cam member 13 is provided with a cam edge14. extending obliquely to the aXis o the rotatable member 10. so -thatan adjustment of the cam member 12 longitudinallv of the axis of therotatable member 10 will change the time relation between theactuating-member 10 and the ac uated member 11.

For shifting the adjustable cam member 12. a screw 15 is provided.having a threaded engagement with the cam member-12. and rotatablymounted in a frame or bracket 16. which in turn is secured to thesection on the line of rota-table actuating-member 10. The cam.

be placed in any one of the circumferential series of notches 20, and asecuring screw 22 then inserted through the registering openings of theframe members 18 and 19 and the rotatable actuating-member 10, andscrewed into the tapped hole in the inside frame member 19, and thentightened up to clamp the frame member or bracket, firmly in place onthe actuating-member 10.

It will be noted that the bracket takes up very little roomcircumferentially of the r; tatable member or wheel 10. In fact, ittakes up so little room, that if desired, one of the brackets could beplaced in position for every one of the notches 20.

As indicated in Fig. 4, the pin 17 which secures the members of theframe together, is riveted over at its ends to securely hold the framemembers 18 and 19 together.

As best shown in Figs. 4 and 5, the screw is held against longitudinalmovement in the bracket 16 by reason of the reduced portions 23 andwhich form journal portions mounted in cor-operating bearing portions inthe frame members 18 and 19.

In order to enable the reduc d portion to be entered into theb'earingportion inthe frame member 18, this frame member 18 has anenlarged opening adjacent the bearing portion, large enough to permitthe insertion of the main threaded body portion of the screw 15, whichis inserted through this large opening before the frame members 18 and19 are secured together. the journal portion 23 being then slipped upinto the contracted or small bearing portion of the opening, where it isheld in place when the parts are completely assembled. by the engagementof the pin 17 with the shittable cam member 12.

The cam member 13 mounted on the actuated member 11. may be formed as U-shaped stamping. having connecting wings or arms 26 and 27. united bythe obliquely extending cam portion 28. these wing portions 26 and 27being secured to the pivoted actuated member 11 by means of rivets,extending through the wing portions 26 and 27 and through the spacingsleeves 29, which space and position the ca:v member 13 with respect tothe actuated member 11. This actuated member 11 is shown as pivoted in30 and provided witha spring 31 for returning it atter it has beenactuated by the operating member 10.

The slant of the oblique cam member may be such that the advance of oneside of the oblique cam edge 14- over the other side, will be equal tothe pitch of the notches 9.0 on the actuating member 10; with such aslant. any desired timing of the actuated member may be secured.

In one form of our construction, the dis tance between adjacent notchesis made to correspond to a 15-minute movement. In this particular formof our invention. We design the pitch of the thread on the screw 15 sothat one complete turn of the screw will give a one-minute adjustment ora oneminute change in the time-relation between the actuating-member 10and the actuated member 11, and fifteen complete turns of the screw willmove the cam member 12 from one extreme of its movement to the other.

The operation and use 0'5 the timing'ad and the actuated member 11, itis onlynecessary to take a screw-driver and turn the screw in onedirection or the other, to advance or retard the timing of the actuatedmember with respectto the actuatingemeniber.

It will be seen that we have provided a. construction in which a veryaccurate and minute adjustment may be readily obtained. comparable to amicrometer or Vernier adjustment in instruments of precision, and whichis very compact in construction, particularly occupying very littlespace circumterentially of the rotatable member on which it is mounted.,7

Having thus described our invention, wha l. we claim as new and desireto secure by United States Letters Patent, is: j

1. A time-adjustment construction comprising a rotatableactuating-member. a

rotatable member, and a screw for shifting said member.

3. A time-adjustment construction (0D1 prising a rotatableactuating-member. a member actuated thereby. and adjus ing means forchanging the time relation e, tween. said members, comprising a. membershiftable longitudinally of the axis of the rotatable member. and a.screw for shifting said shiftable member, having its axis extendinglongitudinally of the axis of the rotatable member. 8

4. A time-adjustment construction com, prising a rotatableactuating-member. a member actuated thereby, and adjusting means forchanging the time relation be tween said members, comprising a membershiftable longitudinally of the axis of the rotatable, member. and ascrew for shifting said shiftable member having its axis extendinglongitudinally of the axis of the rotatable member, said screw andshiftable member being mounted on said rotatable member. V 7' 5. Atime-adjustment construction comprising a rotatable actuating-member, amember actuated thereby, and adjusting means for changing the timerelation between said members, comprising a member shiftablelongitudinally of the axis of the rotatable member, and a srrew forshifting said sl 'ttable meznler, having its axis extending;longitudinally of the axis of the rotatable member, said screw having athreaded engagement with said shiftablc iucn'iber and being held againstlongitudinal mo .*en'ient,

6. It time-adjustment construction comprising a rotatableactuating-member, a member actuated thereby, and adjusting means forchanging the time relation between said members, comprising a cam membersliiittable longitudinally of the axis of the rotatable member. a screwfor shifting said cam member having its-axis extending longitudinally ofthe axis of the rotatable member, said screw having a threadedengagementwith said shittable member and being held against longitudinalmovement. and a guide-member extending longitudinally of the axis of therotatable member, and engaging said cam member to hold it againstrotation with said screw.

7. A time-adjustment construction romprising a rotatableactuating-member, a member actuated thereby. and adjusting means forchanging the time relation between said members, comprising a cam membershiftable longitudinally of the axis of the rotatable member, and ascrew for shitting said shiftalole member having its axis extendinglongitudinally of the axis of the rotatable member, a bracket in whichsaid screw is rotatably mounted, said rotatable member being providedwith a circumferential series of notches, and said bracket be ingprovided with a guide-pin for said shift able cam for holding it againstrotation with said screw, said guide-pin being insertable into any oneof said notches, to position said bracket on said rotatable member.

8. A time-adjustment construction comprising a rotatableactuating-member. a member actuated thereby, and adjusting means forchanging the time relation between said members, comprising a cam membershittable longitudinally of the axis of the rotatable member, and ascrew for shitting said shiftable member having its axis extendinglongitudinally of the axis of the rotatable member. a bracket in whichsaid screw is rotatably mounted, said rotatable member being providedwith a circumferential series of notches, and said bracket be ingprovided with a guide-pin for said shiftable cam for holding it againstrotation with said screw, said guide-pin being insertable into any oneof said notches, to position said bracket on said rotatable member, anda screw to assist said pin in holding said bracket in position on saidrotatable member.

9. A time-adjustment construction comprising a rotatableactuating-member, a member actuated thereby, and means for changing thetime relation between said members. comprising a cam member having a camedge extending obliquely of the axis of the rotatable member, andmounted on said actuated member, and cam means mounted for movement onsaid rotatable member longitudinally of its axis for co-operation withsaid oblique cam edge, to vary the time relation between theactuatingmember and the actuated member.

10. A time-adjustment construction comprising a rotatable member, a cammember secured to said rotatable member, a lever provided with a camedge cooperating with said cam member and extending obliquely to theaxis of the rotatable member, and a screw for moving said cam to changeits position in relation to said oblique edge.

11. A time-adjustment construction comprising a rotatableactuating-member, a lever actuated thereby, and adjusting means foreffecting a micrometer adjustment in the time relation between saidmembers, comprising a shiftable cam member, and a screw for shiftingsaid cam member.

12. A time-adjustment construction comprising a rotatableactuating-member, a member actuated thereby, and means for effecting anaccurate, minute adjustment of the time relation between said members,comprising a cam member mounted on the actuated member and having a camedge extending obliquely of the axis of the rotatable member, and a camcooperating with said cam edge and mounted on the rotatable member andshiftablc longitudinally of the axis thereof, and a screw also mountedon said rotatable member for giving a micrometer adjustment to saidshiftable cam, to vary the time relation between the actuatingmember andthe actuated member.

In witness whereof, we have hereunto subscribed our names.

CHARLES M. OROOK. ALBERT E. LONG.

